homework help | Mathematics | Page 1

chrome dust Mar 30, 2023, 6:23 PM

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What do I type in? Doing homework

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@weary rivet

weary rivet Mar 30, 2023, 6:26 PM

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you have 2 roots at 0, so x² and one root at 8-3i so x²(x-8+3i) which if you expand out to achieve:
x³-8x²+3ix²
not sure whether it wants real coefficients so that's it

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yeah it couldn't want real coefficients

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otherwise 8+3i would be listed as a root

chrome dust Mar 30, 2023, 6:27 PM

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I’ll let you know imma type it thank you so much

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It’s wrong it says

weary rivet Mar 30, 2023, 6:28 PM

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hm

chrome dust Mar 30, 2023, 6:28 PM

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I’ll show you an example

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@weary rivet

weary rivet Mar 30, 2023, 6:29 PM

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so it DOES want real coefficients

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then that gives it 8-3i,8+3i,0,0

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bro

chrome dust Mar 30, 2023, 6:29 PM

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Let me try it

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Well nvm it gives a new problem

weary rivet Mar 30, 2023, 6:29 PM

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would be nice if you told me that it wanted real coefficients? if you knew

chrome dust Mar 30, 2023, 6:29 PM

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chrome dust Mar 30, 2023, 6:30 PM

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weary rivet would be nice if you told me that it wanted real coefficients? if you knew

Sorry I’m new to all this

chrome dust Mar 30, 2023, 6:30 PM

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chrome dust

This is the new problem

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@weary rivet

weary rivet Mar 30, 2023, 6:31 PM

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you have roots 8-6i,8+6i,0,0,0
so x³(x-8+6i)(x-8-6i)
x³(x²-16x+100)
x⁵-16x⁴+100x³

chrome dust Mar 30, 2023, 6:32 PM

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Imma type it in I’ll let you know if it works

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I got it right! Thank you can you help with this one?

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weary rivet Mar 30, 2023, 6:33 PM

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you should do the rest yourself, if you have any questions regarding how to do them then ask

chrome dust Mar 30, 2023, 6:33 PM

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I don’t know how to do this math I’m really struggling

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@weary rivet can you help me set up the problem and I can work it out?

weary rivet Mar 30, 2023, 6:35 PM

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-6(x+4)²(x-1)

chrome dust Mar 30, 2023, 6:35 PM

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Working it out now

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I got 6x^3+42x^2+48x-96

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?

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@weary rivet

weary rivet Mar 30, 2023, 6:37 PM

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nevermind multiply all of that by -1

chrome dust Mar 30, 2023, 6:37 PM

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Multiply what I got or what your equation is?

weary rivet Mar 30, 2023, 6:38 PM

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yeah if you look at the factored one you'll see I missed a - sign originally

chrome dust Mar 30, 2023, 6:38 PM

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So yours?

weary rivet Mar 30, 2023, 6:38 PM

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so you just multiply everything by -1 and you got the answer

chrome dust Mar 30, 2023, 6:39 PM

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I got 6x^3+42x^2+48x-96

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I think that’s wrong

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@weary rivet

weary rivet Mar 30, 2023, 6:40 PM

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yes, it's right on everything except the factored one I gave you was slightly wrong

chrome dust Mar 30, 2023, 6:40 PM

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chrome dust I got 6x^3+42x^2+48x-96

So this is the answer?

weary rivet Mar 30, 2023, 6:40 PM

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all you have to do to get the correct answer is do -(6x³+42x²+48x-96)

weary rivet Mar 30, 2023, 6:40 PM

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weary rivet -6(x+4)²(x-1)

this was originally 6(x+4)²(x-1)

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and that's what you expanded

chrome dust Mar 30, 2023, 6:41 PM

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I got -6x^3-42x^2-48x+96

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Oooo I see where I got this wrong

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@weary rivet can you help me with graphs?

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I struggle with them

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@vernal vigil

weary rivet Mar 30, 2023, 6:45 PM

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you should really aim to become independent

chrome dust Mar 30, 2023, 6:46 PM

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I need help

weary rivet Mar 30, 2023, 6:46 PM

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look at the khan academy on graphs

chrome dust Mar 30, 2023, 6:46 PM

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That doesn’t help me

weary rivet Mar 30, 2023, 6:46 PM

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send the graph here and I'll have a look then

chrome dust Mar 30, 2023, 6:46 PM

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@weary rivet

weary rivet Mar 30, 2023, 6:49 PM

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look for where the line is below the y=0

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notice it's between -2 and -1

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so (-2,-1)

chrome dust Mar 30, 2023, 6:49 PM

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Let me see if it works

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I can’t check it until the others are filled in

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All for the same graph @weary rivet

weary rivet Mar 30, 2023, 6:53 PM

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(-2,-1]
(-∞,-2)∪(-1,∞)
(-∞,-2)∪[-1,∞)

chrome dust Mar 30, 2023, 6:55 PM

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It worked all of them

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And idea on these ?

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@weary rivet

weary rivet Mar 30, 2023, 6:56 PM

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it's up to you now

chrome dust Mar 30, 2023, 6:57 PM

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Please bro

chrome dust Mar 30, 2023, 6:57 PM

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weary rivet it's up to you now

Please help

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@weary rivet

chrome scarab Mar 30, 2023, 7:01 PM

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the answer is literally in the graph

chrome dust Mar 30, 2023, 7:01 PM

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chrome scarab the answer is literally in the graph

I’m off that assignment

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Can you help me with rational functions? @chrome scarab

chrome scarab Mar 30, 2023, 7:01 PM

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whats the problem

chrome dust Mar 30, 2023, 7:02 PM

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@chrome scarab

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I don’t know what I clicked sorry

chrome scarab Mar 30, 2023, 7:03 PM

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you have difficulty factoring?

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did you try

chrome dust Mar 30, 2023, 7:03 PM

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Yes!

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I did

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I’ve been at this all week

chrome scarab Mar 30, 2023, 7:03 PM

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hmm you could break that 11 into 10t and 1t

chrome dust Mar 30, 2023, 7:04 PM

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So what would I type in?

chrome scarab Mar 30, 2023, 7:04 PM

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i wont tell you

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you need to figure this out

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so now we have 2t^2 + 10t + t + 5

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factor the first two by 2t

chrome dust Mar 30, 2023, 7:04 PM

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So add them up?

chrome dust Mar 30, 2023, 7:05 PM

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chrome scarab so now we have 2t^2 + 10t + t + 5

So I factor this?

chrome scarab Mar 30, 2023, 7:05 PM

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what would you have if you use the distributive property

chrome dust Mar 30, 2023, 7:06 PM

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chrome scarab so now we have 2t^2 + 10t + t + 5

Use distributive property on here?

chrome scarab Mar 30, 2023, 7:06 PM

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yes

chrome dust Mar 30, 2023, 7:06 PM

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Let me try and work it out please stay

chrome scarab Mar 30, 2023, 7:06 PM

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2t^2 + 5*2t + t + 5

can you see what's common

chrome dust Mar 30, 2023, 7:06 PM

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The T?

chrome scarab Mar 30, 2023, 7:07 PM

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2t

chrome dust Mar 30, 2023, 7:07 PM

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What now

chrome scarab Mar 30, 2023, 7:07 PM

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chrome dust Use distributive property on here?

this

chrome dust Mar 30, 2023, 7:07 PM

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So how would I set up the equation?

chrome scarab Mar 30, 2023, 7:08 PM

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use the property

chrome dust Mar 30, 2023, 7:08 PM

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chrome scarab 2t^2 + 5*2t + t + 5 can you see what's common

So this?

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Like add it up?

chrome scarab Mar 30, 2023, 7:08 PM

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no

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review the addition and multiplication properties

chrome dust Mar 30, 2023, 7:09 PM

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I’m so confused

chrome scarab Mar 30, 2023, 7:10 PM

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let's take this a step at the time shall we

chrome dust Mar 30, 2023, 7:10 PM

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I’m all for it

chrome scarab Mar 30, 2023, 7:10 PM

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you know, a(b + c) = ab + ac, correct?

chrome dust Mar 30, 2023, 7:10 PM

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Yes

chrome scarab Mar 30, 2023, 7:10 PM

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can you do for the 2t^2 + 5*2t part the same

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where a = 2t

chrome dust Mar 30, 2023, 7:11 PM

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So solve this?

chrome scarab Mar 30, 2023, 7:11 PM

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no no, dont rush

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just factor

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make it a(b + c)

chrome dust Mar 30, 2023, 7:12 PM

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2t^2+10t

chrome scarab Mar 30, 2023, 7:12 PM

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try again

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you didn't factor

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would you agree 2t^2 + 10t = 2t(t + 5) ?

chrome dust Mar 30, 2023, 7:14 PM

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I got 2t-1 and T-5

chrome scarab Mar 30, 2023, 7:14 PM

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~~like that minus into plus and you're fine~~

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oh no SORRY

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had it wrong in my notes haha

chrome dust Mar 30, 2023, 7:15 PM

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Your good I got to this part

chrome scarab Mar 30, 2023, 7:15 PM

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yea boy well done

chrome dust Mar 30, 2023, 7:15 PM

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chrome scarab Mar 30, 2023, 7:18 PM

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the vertical asymptotes would be whatever value makes the denominator 0

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you found those in part2

chrome dust Mar 30, 2023, 7:19 PM

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This one? @chrome scarab

chrome scarab Mar 30, 2023, 7:19 PM

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look at the graph, where do you believe the f(x) leads to as you go to the farthest left***

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left sorry

chrome dust Mar 30, 2023, 7:20 PM

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What is the f(x)

chrome scarab Mar 30, 2023, 7:20 PM

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the blue line

chrome dust Mar 30, 2023, 7:20 PM

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There’s two blue lines

chrome scarab Mar 30, 2023, 7:21 PM

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focus on the one that's on the left, the first one

chrome dust Mar 30, 2023, 7:21 PM

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What do I need to focus on right now for the left line?

chrome scarab Mar 30, 2023, 7:22 PM

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imagine that line extend outside of what you see, what kind of value does it approach

chrome dust Mar 30, 2023, 7:22 PM

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0?

chrome scarab Mar 30, 2023, 7:23 PM

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close, but notice that

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chrome dust Mar 30, 2023, 7:23 PM

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Which way is it going?

chrome scarab Mar 30, 2023, 7:23 PM

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it's 3, normally it'd be 0 haha

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left

chrome dust Mar 30, 2023, 7:23 PM

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So what would I type in for that?

chrome scarab Mar 30, 2023, 7:23 PM

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3 is my bet

chrome dust Mar 30, 2023, 7:24 PM

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It has to be like formatted as a coordinate I think

chrome scarab Mar 30, 2023, 7:24 PM

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oH hold on

chrome dust Mar 30, 2023, 7:24 PM

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Actually nvm it’s just 3

chrome scarab Mar 30, 2023, 7:24 PM

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hahaha

chrome dust Mar 30, 2023, 7:24 PM

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This one ?

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chrome scarab Mar 30, 2023, 7:25 PM

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aye dont make me sit through all 10 parts

chrome dust Mar 30, 2023, 7:25 PM

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Sorry

chrome scarab Mar 30, 2023, 7:26 PM

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as x approaches the value 1 from the left (you can see the black line)

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where does the blue line go

chrome scarab Mar 30, 2023, 7:26 PM

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chrome dust Sorry

you should do a bit more studying mhm

chrome dust Mar 30, 2023, 7:26 PM

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3?

chrome scarab Mar 30, 2023, 7:27 PM

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chrome dust 3?

notice how it goes down

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you approach 1 from left side

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it's like a slidee

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therefore?

chrome dust Mar 30, 2023, 7:27 PM

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I get it I got it from here

chrome scarab Mar 30, 2023, 7:28 PM

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what would you answer

chrome dust Mar 30, 2023, 7:28 PM

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Idk

chrome scarab Mar 30, 2023, 7:28 PM

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wouldnt all the values be negative as it goes down?

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infinitely down

chrome dust Mar 30, 2023, 7:29 PM

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It worked!

chrome scarab Mar 30, 2023, 7:29 PM

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what worked

chrome dust Mar 30, 2023, 7:29 PM

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The answer is right

chrome scarab Mar 30, 2023, 7:29 PM

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ik it's right, did you get it tho?

chrome dust Mar 30, 2023, 7:30 PM

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Yeah

chrome scarab Mar 30, 2023, 7:30 PM

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mhm good job

mossy apex Mar 31, 2023, 8:00 PM

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+close

#homework help